Kirby Krackle is a imaging technique pioneered by Jack Kirby, the legendary cartoonist who played a part in making Marvel’s comics the success story you know. It is famous for its use of a complex series of dot patterns to describe boundless energy (per Comic).
Krackle made his screen debut in the dramatic battle between The Watcher (Jeffrey Wright) and the Infinity Stone-armed Ultron (Ross Marquand) in the Disney+ animated MCU show “What If…?” According to director Bryan Andrews, the introduction of Kirby Krackle in the MCU – and, in the grand scheme of things, in the toolkit of special effects studios in general – has been his perennial aspiration and he hopes that it will be successful in future projects.
“I just wanted to do it forever,” Andrews said, “And then I always felt sad that they hadn’t done Kirby Krackle on the live action movies, so I said, ‘We’re doing this thing. It’s here, guys, and everyone’s like, “Yay!” I think, now that we’ve done it and it looks amazing, I hope that whatever weirdness people are avoiding it [is over] – I don’t know why they did that. Come on you. Bring it, bring it! So we’ll see. Maybe it’s a new era of visual effects. “
Andrews’ hopes will most likely come true in the future. After all, there are several upcoming MCU projects that seem like a good fit to use this effect in the future, such as “Doctor Strange in Madness’s Multiverse”, “Ant-Man and the Wasp: Quantumania” and especially “Fantastic Four” – based on the Kirby comic that made Kirby Krackle famous in the first place.
https://www.looper.com/740398/what-is-the-kirby-krackle-in-the-mcu/ What is Kirby Krackle in the MCU?